Alert archive / Florida / Hillsborough County
Weather alerts in Hillsborough County, Florida, 2019
151 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Hillsborough County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 151
- Warnings
- 34
- Watches
- 4
- Advisories
- 39
- Busiest month
- July33 alerts
- Busiest day
- October 19, 201912 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 3 tornado warnings covering Hillsborough County in 2019 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 22 minutes after it went out.
Hillsborough County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 2 | 33% | 1 | 100% | 22 min |
| Severe thunderstorm warnings | 15 | 7 | 53% | 9 | 67% | 39 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Tampa Bay, FL: tornado warnings | 13 | 3 | 77% | 6 | 83% | 21 min |
| NWS Tampa Bay, FL: severe thunderstorm warnings | 48 | 22 | 54% | 70 | 60% | 19 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 1, 3:57 AM EST | Dense Fog Advisory | TBW | 6 hr |
| Jan 3, 11:34 PM EST | Dense Fog Advisory | TBW | 8 hr |
| Jan 4, 2:41 PM EST | Rip Current Statement | TBW | 29 hr |
| Jan 9, 4:52 AM EST | Rip Current Statement | TBW | 38 hr |
| Jan 19, 2:27 PM EST | Lake Wind Advisory | TBW | 27 hr |
| Jan 19, 2:37 PM EST | Rip Current Statement | TBW | 52 hr |
| Jan 19, 2:37 PM EST | High Surf Advisory | TBW | 42 hr |
| Jan 23, 3:10 PM EST | Rip Current Statement | TBW | 46 hr |
| Jan 24, 4:18 AM EST | Mesoscale Discussion | SPC | 117 min |
| Jan 24, 5:06 AM EST | Special Weather Statement | TBW | 39 min |
| Jan 24, 5:23 AM EST | Severe Thunderstorm Warning | TBW | 37 min |
| Jan 24, 5:39 AM EST | Severe Thunderstorm Warning | TBW | 36 min |
| Jan 26, 8:54 PM EST | River Flood Warning | TBW | 4 days |
| Jan 28, 2:23 AM EST | Rip Current Statement | TBW | 17 hr |
| Feb 3, 3:11 AM EST | Dense Fog Advisory | TBW | 8 hr |
| Feb 5, 3:27 AM EST | Dense Fog Advisory | TBW | 7 hr |
| Feb 13, 4:40 AM EST | Rip Current Statement | TBW | 14 hr |
| Feb 17, 4:31 AM EST | Dense Fog Advisory | TBW | 5 hr |
| Feb 26, 5:07 PM EST | Areal Flood Advisory | TBW | 3 hr |
| Mar 4, 2:05 AM EST | Mesoscale Discussion | SPC | 115 min |
| Mar 5, 3:04 PM EST | Wind Chill Advisory | TBW | 18 hr |
| Mar 11, 3:16 AM EDT | Special Weather Statement | TBW | 3 hr |
| Mar 27, 4:01 AM EDT | Rip Current Statement | TBW | 26 hr |
| Apr 9, 2:39 PM EDT | Rip Current Statement | TBW | 29 hr |
| Apr 14, 3:42 AM EDT | Rip Current Statement | TBW | 40 hr |
| Apr 14, 3:45 AM EDT | Lake Wind Advisory | TBW | 15 hr |
| Apr 18, 4:20 AM EDT | Coastal Flood Statement | TBW | 38 hr |
| Apr 18, 4:20 AM EDT | Rip Current Statement | TBW | 4 days |
| Apr 18, 4:20 AM EDT | High Surf Advisory | TBW | 66 hr |
| Apr 18, 4:21 AM EDT | Lake Wind Advisory | TBW | 39 hr |
| Apr 19, 3:49 AM EDT | Wind Advisory | TBW | 15 hr |
| Apr 19, 10:13 AM EDT | Tornado Watch | SPC | 6 hr |
| Apr 19, 12:31 PM EDT | Severe Thunderstorm Warning | TBW | 44 min |
| Apr 19, 1:18 PM EDT | Severe Thunderstorm Warning | TBW | 72 min |
| Apr 19, 1:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Apr 19, 2:13 PM EDT | Severe Thunderstorm Warning | TBW | 77 min |
| Apr 19, 4:29 PM EDT | River Flood Warning | TBW | 4 hr |
| Apr 26, 3:28 PM EDT | Rip Current Statement | TBW | 29 hr |
| May 5, 11:59 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 5, 12:22 PM EDT | Severe Thunderstorm Warning | TBW | 38 min |
| May 5, 12:55 PM EDT | Special Weather Statement | TBW | 65 min |
| May 5, 1:05 PM EDT | Severe Thunderstorm Warning | TBW | 25 min |
| May 5, 1:28 PM EDT | Severe Thunderstorm Warning | TBW | 32 min |
| May 13, 8:32 AM EDT | Rip Current Statement | TBW | 12 hr |
| May 13, 9:46 AM EDT | Mesoscale Discussion | SPC | 119 min |
| May 13, 1:32 PM EDT | Special Weather Statement | TBW | 43 min |
| May 13, 2:13 PM EDT | Special Weather Statement | TBW | 62 min |
| May 13, 2:28 PM EDT | Areal Flood Advisory | TBW | 92 min |
| Jun 8, 2:58 PM EDT | Rip Current Statement | TBW | 53 hr |
| Jun 8, 9:20 PM EDT | Special Weather Statement | TBW | 40 min |
| Jun 9, 2:04 PM EDT | Special Weather Statement | TBW | 41 min |
| Jun 9, 7:40 PM EDT | Special Weather Statement | TBW | 35 min |
| Jun 12, 10:45 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 12, 1:05 PM EDT | Special Weather Statement | TBW | 40 min |
| Jun 12, 1:58 PM EDT | Special Weather Statement | TBW | 47 min |
| Jun 19, 4:19 PM EDT | Special Weather Statement | TBW | 41 min |
| Jun 26, 4:05 AM EDT | Heat Advisory | TBW | 14 hr |
| Jun 27, 12:27 AM EDT | Special Weather Statement | TBW | 48 min |
| Jun 28, 8:58 PM EDT | Special Weather Statement | TBW | 47 min |
| Jul 3, 3:54 AM EDT | Heat Advisory | TBW | 14 hr |
| Jul 4, 3:40 AM EDT | Heat Advisory | TBW | 14 hr |
| Jul 4, 1:54 PM EDT | Special Weather Statement | TBW | 51 min |
| Jul 4, 2:29 PM EDT | Areal Flood Advisory | TBW | 61 min |
| Jul 4, 2:42 PM EDT | Severe Thunderstorm Warning | TBW | 19 min |
| Jul 4, 2:48 PM EDT | Severe Thunderstorm Warning | TBW | 22 min |
| Jul 9, 12:52 PM EDT | Areal Flood Advisory | TBW | 83 min |
| Jul 9, 2:51 PM EDT | Rip Current Statement | TBW | 3 days |
| Jul 12, 5:30 PM EDT | Special Weather Statement | TBW | 45 min |
| Jul 12, 11:34 PM EDT | Rip Current Statement | TBW | 46 hr |
| Jul 12, 11:34 PM EDT | High Surf Advisory | TBW | 34 hr |
| Jul 17, 7:58 PM EDT | Special Weather Statement | TBW | 47 min |
| Jul 17, 8:27 PM EDT | Special Weather Statement | TBW | 33 min |
| Jul 17, 8:30 PM EDT | Severe Thunderstorm Warning | TBW | 17 min |
| Jul 19, 6:54 PM EDT | Special Weather Statement | TBW | 36 min |
| Jul 19, 7:13 PM EDT | Severe Thunderstorm Warning | TBW | 32 min |
| Jul 19, 7:33 PM EDT | Special Weather Statement | TBW | 42 min |
| Jul 19, 7:43 PM EDT | Areal Flood Advisory | TBW | 92 min |
| Jul 19, 8:04 PM EDT | Special Weather Statement | TBW | 41 min |
| Jul 19, 8:45 PM EDT | Special Weather Statement | TBW | 30 min |
| Jul 20, 4:49 PM EDT | Severe Thunderstorm Warning | TBW | 41 min |
| Jul 20, 5:31 PM EDT | Special Weather Statement | TBW | 44 min |
| Jul 20, 6:06 PM EDT | Severe Thunderstorm Warning | TBW | 24 min |
| Jul 21, 3:21 PM EDT | Special Weather Statement | TBW | 39 min |
| Jul 21, 3:59 PM EDT | Special Weather Statement | TBW | 61 min |
| Jul 21, 4:11 PM EDT | Areal Flood Advisory | TBW | 94 min |
| Jul 24, 1:51 PM EDT | Special Weather Statement | TBW | 39 min |
| Jul 24, 1:55 PM EDT | Severe Thunderstorm Warning | TBW | 35 min |
| Jul 24, 4:33 PM EDT | River Flood Warning | TBW | 5 days |
| Jul 25, 10:27 AM EDT | Areal Flood Advisory | TBW | 2 hr |
| Jul 25, 4:08 PM EDT | River Flood Warning | TBW | 4 days |
| Jul 31, 9:47 AM EDT | River Flood Warning | TBW | 3 days |
| Jul 31, 9:47 AM EDT | River Flood Warning | TBW | 68 hr |
| Aug 2, 9:14 PM EDT | River Flood Warning | TBW | 29 hr |
| Aug 3, 9:22 PM EDT | River Flood Warning | TBW | 23 hr |
| Aug 7, 10:02 PM EDT | River Flood Warning | TBW | 64 hr |
| Aug 9, 10:08 AM EDT | River Flood Warning | TBW | 32 hr |
| Aug 10, 3:55 AM EDT | Heat Advisory | TBW | 13 hr |
| Aug 11, 6:13 AM EDT | River Flood Warning | TBW | 15 hr |
| Aug 12, 9:26 AM EDT | River Flood Warning | TBW | 7 days |
| Aug 13, 6:44 AM EDT | River Flood Warning | TBW | 4 days |
| Aug 13, 12:01 PM EDT | Flood Watch | TBW | 5 days |
| Aug 13, 1:17 PM EDT | Areal Flood Advisory | TBW | 58 min |
| Aug 13, 9:56 PM EDT | River Flood Warning | TBW | 5 days |
| Aug 15, 1:04 PM EDT | Rip Current Statement | TBW | 55 hr |
| Aug 15, 2:45 PM EDT | Areal Flood Advisory | TBW | 90 min |
| Aug 16, 3:25 AM EDT | Areal Flood Advisory | TBW | 95 min |
| Aug 16, 5:08 AM EDT | Areal Flood Advisory | TBW | 97 min |
| Aug 16, 1:37 PM EDT | Tornado Warning | TBW | 8 min |
| Aug 16, 7:18 PM EDT | Special Weather Statement | TBW | 42 min |
| Aug 27, 3:12 PM EDT | River Flood Warning | TBW | 44 hr |
| Sep 3, 5:42 AM EDT | Rip Current Statement | TBW | 4 days |
| Sep 5, 3:40 AM EDT | Heat Advisory | TBW | 14 hr |
| Sep 5, 7:38 PM EDT | Heat Advisory | TBW | 22 hr |
| Sep 18, 6:32 PM EDT | Special Weather Statement | TBW | 28 min |
| Oct 7, 9:12 PM EDT | Areal Flood Advisory | TBW | 93 min |
| Oct 8, 5:57 PM EDT | Areal Flood Advisory | TBW | 93 min |
| Oct 18, 8:30 AM EDT | Rip Current Statement | TBW | 60 hr |
| Oct 18, 8:30 AM EDT | High Surf Advisory | TBW | 48 hr |
| Oct 18, 11:52 AM EDT | Coastal Flood Advisory | TBW | 44 hr |
| Oct 18, 7:15 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 18, 9:52 PM EDT | Special Weather Statement | TBW | 38 min |
| Oct 18, 10:07 PM EDT | Special Weather Statement | TBW | 23 min |
| Oct 18, 10:23 PM EDT | Tornado Warning | TBW | 37 min |
| Oct 18, 10:28 PM EDT | Areal Flood Advisory | TBW | 92 min |
| Oct 18, 10:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 18, 10:55 PM EDT | Tornado Warning | TBW | 50 min |
| Oct 19, 1:26 AM EDT | Mesoscale Discussion | SPC | 64 min |
| Oct 19, 1:52 AM EDT | Tornado Watch | SPC | 12 hr |
| Oct 19, 5:01 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Oct 19, 8:49 AM EDT | Mesoscale Discussion | SPC | 86 min |
| Oct 19, 10:16 AM EDT | River Flood Warning | TBW | 71 hr |
| Oct 19, 11:17 AM EDT | Mesoscale Discussion | SPC | 58 min |
| Oct 27, 2:24 AM EDT | Rip Current Statement | TBW | 18 hr |
| Oct 28, 5:03 AM EDT | Rip Current Statement | TBW | 10 hr |
| Oct 31, 2:03 PM EDT | Rip Current Statement | TBW | 30 hr |
| Nov 13, 3:35 AM EST | Rip Current Statement | TBW | 17 hr |
| Nov 15, 3:23 AM EST | Rip Current Statement | TBW | 57 hr |
| Nov 30, 1:20 PM EST | Rip Current Statement | TBW | 3 days |
| Dec 1, 5:24 AM EST | High Surf Advisory | TBW | 44 hr |
| Dec 11, 3:54 AM EST | Dense Fog Advisory | TBW | 6 hr |
| Dec 13, 2:23 PM EST | Rip Current Statement | TBW | 46 hr |
| Dec 14, 3:17 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 14, 3:47 AM EST | Severe Thunderstorm Watch | SPC | 6 hr |
| Dec 14, 6:42 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 17, 3:04 PM EST | Mesoscale Discussion | SPC | 116 min |
| Dec 17, 3:38 PM EST | Rip Current Statement | TBW | 48 hr |
| Dec 18, 7:47 AM EST | High Surf Advisory | TBW | 8 hr |
| Dec 22, 10:23 AM EST | Coastal Flood Statement | TBW | 18 hr |
| Dec 22, 10:23 AM EST | Rip Current Statement | TBW | 57 hr |
| Dec 22, 8:30 PM EST | High Surf Advisory | TBW | 47 hr |
| Dec 23, 1:59 PM EST | Special Weather Statement | TBW | 31 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 15 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 15 |
| Special Weather Statement | 30 |
| Flooding | |
| River Flood Warning | 16 |
| Flood Watch | 1 |
| Areal Flood Advisory | 14 |
| Heat | |
| Heat Advisory | 6 |
| Cold | |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Lake Wind Advisory | 3 |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Coast and beach | |
| Coastal Flood Advisory | 1 |
| High Surf Advisory | 7 |
| Coastal Flood Statement | 2 |
| Rip Current Statement | 27 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.